books.google.se - As Hollywood entered the sound era, it was rightly determined that the same public fascinated by the novelty of the talkie would be dazzled by the spectacle of a song and dance film. In 1929 and 1930, film musicals became the industry’s most lucrative genre—until the greedy studios almost killed...https://books.google.se/books/about/The_First_Hollywood_Musicals.html?hl=sv&id=Rg-UBJaPD-sC&utm_source=gb-gplus-shareThe First Hollywood Musicals